How does hpv cause cancer mechanism, Traducere "HPM - Virusul Papiloma uman" în engleză

How papillomavirus cause cancer, When does hpv become cancer. Case Report

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    Department of Ophthalmology, Grigore T. E-mail: moc.

    how papillomavirus cause cancer

    We report the detection of HPV how papillomavirus cause cancer in a sample taken from a year-old patient with squamous cell carcinoma of the conjunctiva of the left eye. The method used for the detection of HPV was real time polymerase chain reaction.

    The evolution was favorable after surgical removal of the tumor and the patient was explained that long-term follow-up is essential detoxifiere in timpul alaptarii avoid recurrence. Keywords: Conjunctiva, eye, human papillomavirus 52, real time polymerase chain reaction, squamous cell carcinoma Human papillomavirus HPV infection is strongly associated with anogenital tumors cervix, penis, vulva, vagina, anushead and neck cancers oral cavity, esophagus, larynxand nonmelanoma skin cancers squamous and basal cell carcinoma.

    how papillomavirus cause cancer

    The association between HPV infection and eye tumors is little explored territory. Di Girolamo brings forward a two-hit theory that explains cancerogenesis in OSSN: The first hit is mediated by ultraviolet radiation exposure that causes genetic alteration and the second hit is mediated by HPV infection in the susceptible cells.

    The virus infects basal epithelial cells of stratified squamous epithelium. Interacting with various cellular proteins, E6 and When does hpv become cancer influence fundamental cellular functions like cell cycle regulation, telomere maintenance, susceptibility to apoptosis, intercellular adhesion and regulation of immune responses. High-risk E6 and E7 bind to p53 and pRb and inactivate their functions with dysregulation of the cell cycle.

    Case Report We present a unique case of squamous cell carcinoma of the conjunctiva examined and treated in June The year-old patient presented at the Ophthalmology Department for mild stinging sensation and redness in the left eye for almost 1-year and a half. He has been treated for the last 2 months with dexamethasone eye drops for scleritis by another ophthalmologist.

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    The patient admits being a heavy smoker for almost 30 years and that in his free time he practices agriculture without using sunglasses. All other ophthalmological findings were normal. Conjunctival culture was performed before surgery, and no bacterial infection was found.

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    The CT scan of the head and neck showed no signs of tumor invasion of the orbit or the lymph nodes. The limbic lesion was removed surgically with 2 mm margin of normal tissue and diathermy of the adjacent sclera was done.

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    At the end, the remaining temporal defect was restored using a supero-nasal conjunctiva graft fixed in position with interrupted and surjet The excised tumor was cut into 2 fragments: One for pathology preserved in formalin and one for HPV genotyping preserved in Cobas polymerase chain reaction PCR solution and how papillomavirus cause cancer at 4°C until processing.

    Histopathology exam showed a moderate differentiated keratinized squamous cell carcinoma of the conjunctiva without koilocytosis [Figs.